145684989

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{19813}}^1$

素因数の和:19881

約数の個数: 24

約数和(自身を含む): 226672160

約数和(自身を除く): 80987171

約数列:

[1, 3, 9, 19, 43, 57, 129, 171, 387, 817, 2451, 7353, 19813, 59439, 178317, 376447, 851959, 1129341, 2555877, 3388023, 7667631, 16187221, 48561663, 145684989]

約数ペア:

[(1, 145684989), (3, 48561663), (9, 16187221), (19, 7667631), (43, 3388023), (57, 2555877), (129, 1129341), (171, 851959), (387, 376447), (817, 178317), (2451, 59439), (7353, 19813)]